The World’s Largest Law Firms by Revenue in 2025 | BCGSearch.com

The World’s Largest Law Firms by Revenue in 2025

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The global legal industry is a cornerstone of modern economies, generating immense revenue while addressing the complex needs of corporations, governments, and individuals. At the forefront of this sector are the world’s largest law firms, ranked by revenue, often dubbed "Big Law." These firms wield vast resources, global networks, and unparalleled expertise to handle high-stakes legal matters. This article provides an exhaustive examination of these revenue giants, expanding beyond basic rankings like the AmLaw Global 200 to explore their histories, strategies, and the forces driving their success as of February 27, 2025.
The World’s Largest Law Firms by Revenue in 2025

 

While the Wikipedia entry on the "List of largest law firms by revenue" offers a concise overview, this piece delves deeper, analyzing the top 25 firms with detailed profiles, industry trends, and critical insights. From Kirkland & Ellis’s dominance to the rising influence of firms like Jones Day and White & Case, we’ll uncover what propels these organizations to the top and how they shape the global legal landscape.
 

 

The Evolution of Big Law: A Historical Context


The ascent of large, revenue-focused law firms mirrors the growth of global commerce. In the 19th century, legal practices were small, localized partnerships. The industrial boom, however, spurred demand for sophisticated legal services, laying the foundation for today’s giants.
 

The American Roots of Big Law

In the U.S., firms like Cravath, Swaine & Moore (founded 1819) pioneered modern law firm structures with the "Cravath System," emphasizing talent development and specialization. By the 20th century, firms aligned with burgeoning industries—railroads, steel, and finance—driving revenue growth. Post-World War II globalization and the 1980s M&A surge further elevated American firms, with rankings like AmLaw formalizing revenue as a success metric.
 

The Global Expansion

European firms, notably UK’s Magic Circle, and later Asian players like China’s Yingke, joined the fray as financial hubs like London and Shanghai grew. The Swiss verein model—allowing global branding with regional autonomy—propelled firms like Dentons and DLA Piper to new heights. Today, the top revenue earners operate across dozens of countries, reflecting a truly interconnected legal market.

 

Methodology: How Revenue Rankings Are Determined

The AmLaw Global 200, a leading authority, ranks firms by gross revenue, self-reported and verified by researchers. Challenges include:
  • Reporting Variability: Some firms opt out, skewing global comparisons.
  • Fiscal Calendars: Differing year-ends complicate standardization.
  • Verein Complexity: Firms like Dentons aggregate revenue across independent entities.
  • Currency Fluctuations: Conversions to USD introduce variability.
Despite these nuances, the Global 200 offers a robust snapshot of financial scale as of 2025.

 

The Top 25 Largest Law Firms by Revenue: A Detailed Breakdown


Here, we profile the top 25 firms, starting with the top 10 (previously covered) and extending to ranks 10 through 25. Revenue estimates reflect 2024 trends projected into early 2025.

1. Kirkland & Ellis LLP
  • Revenue: ~$7.5 billion
  • Headquarters: Chicago, USA
  • Lawyer Count: ~3,000
  • Key Practice Areas: Private equity, M&A, litigation
Kirkland & Ellis leads with its private equity dominance, advising on trillion-dollar deals. Founded in 1909, its aggressive talent acquisition and premium rates drive its revenue.

2. Latham & Watkins LLP
  • Revenue: ~$6.8 billion
  • Headquarters: Los Angeles, USA
  • Lawyer Count: ~3,200
  • Key Practice Areas: Corporate finance, M&A, energy
Latham’s global reach and balanced practice mix—transactional and litigation—ensure resilience, serving clients like ExxonMobil.

3. DLA Piper (Verein)
  • Revenue: ~$4.5 billion
  • Headquarters: London, UK / Chicago, USA
  • Lawyer Count: ~4,000
  • Key Practice Areas: Corporate, real estate, IP
DLA Piper’s verein structure supports its 90+ offices, delivering volume-driven revenue across diverse sectors.

4. Baker McKenzie (Verein)
  • Revenue: ~$4.2 billion
  • Headquarters: Chicago, USA
  • Lawyer Count: ~4,700
  • Key Practice Areas: Tax, M&A, arbitration
A pioneer since 1949, Baker McKenzie’s 70-country footprint excels in cross-border work.

5. Dentons (Verein)
  • Revenue: ~$4.0 billion
  • Headquarters: Decentralized
  • Lawyer Count: ~12,000
  • Key Practice Areas: Litigation, real estate
Dentons’ massive scale, built through mergers, makes it the largest by headcount, though profitability lags.

6. Clifford Chance LLP
  • Revenue: ~$3.8 billion
  • Headquarters: London, UK
  • Lawyer Count: ~3,300
  • Key Practice Areas: Finance, M&A
A Magic Circle leader, Clifford Chance thrives in financial services and emerging markets.

7. Skadden, Arps, Slate, Meagher & Flom LLP
  • Revenue: ~$3.5 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~1,700
  • Key Practice Areas: M&A, litigation
Skadden’s M&A legacy, from the 1980s boom to modern megadeals, sustains its revenue.

8. Allen & Overy LLP (A&O Shearman)
  • Revenue: ~$3.4 billion
  • Headquarters: London, UK
  • Lawyer Count: ~2,800
  • Key Practice Areas: Banking, finance
The 2024 Shearman merger bolsters A&O’s transatlantic revenue potential.

9. Linklaters LLP
  • Revenue: ~$3.2 billion
  • Headquarters: London, UK
  • Lawyer Count: ~2,900
  • Key Practice Areas: Corporate, finance
Linklaters’ global corporate focus and emerging market growth fuel its standing.

10. Freshfields Bruckhaus Deringer LLP
  • Revenue: ~$3.1 billion
  • Headquarters: London, UK
  • Lawyer Count: ~2,800
  • Key Practice Areas: Antitrust, M&A
Freshfields’ 1743 roots and modern antitrust expertise secure its top-10 spot.

11. Sidley Austin LLP
  • Revenue: ~$3.0 billion
  • Headquarters: Chicago, USA
  • Lawyer Count: ~2,100
  • Key Practice Areas: Regulatory, corporate finance
Founded in 1866, Sidley Austin’s regulatory prowess and healthcare focus drive steady revenue.

12. Morgan, Lewis & Bockius LLP
  • Revenue: ~$2.9 billion
  • Headquarters: Philadelphia, USA
  • Lawyer Count: ~2,000
  • Key Practice Areas: Labor, energy
Morgan Lewis, since 1873, leverages labor law and energy sector work for growth.

13. White & Case LLP
  • Revenue: ~$2.8 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~2,500
  • Key Practice Areas: Debt finance, technology
Founded in 1901, White & Case’s global debt finance and fintech expertise shine.

14. Hogan Lovells (Verein)
  • Revenue: ~$2.7 billion
  • Headquarters: London, UK / Washington, D.C., USA
  • Lawyer Count: ~2,500
  • Key Practice Areas: Regulatory, IP
A 2010 merger product, Hogan Lovells excels in regulatory and tech sectors.

15. Jones Day
  • Revenue: ~$2.6 billion
  • Headquarters: Cleveland, USA
  • Lawyer Count: ~2,500
  • Key Practice Areas: Litigation, M&A
Jones Day’s 1893 origins and litigation strength, including for Fortune 500 clients, bolster its revenue.

16. Gibson, Dunn & Crutcher LLP
  • Revenue: ~$2.5 billion
  • Headquarters: Los Angeles, USA
  • Lawyer Count: ~1,900
  • Key Practice Areas: Litigation, appellate
Gibson Dunn’s litigation and appellate dominance, notably for Mark Zuckerberg, drives revenue.

17. Norton Rose Fulbright (Verein)
  • Revenue: ~$2.4 billion
  • Headquarters: London, UK
  • Lawyer Count: ~3,700
  • Key Practice Areas: Energy, infrastructure
Norton Rose’s energy focus and verein structure support its global revenue.

18. Sullivan & Cromwell LLP
  • Revenue: ~$2.3 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~900
  • Key Practice Areas: M&A, finance
Sullivan & Cromwell’s elite M&A practice, despite a smaller headcount, yields high revenue.

19. Weil, Gotshal & Manges LLP
  • Revenue: ~$2.2 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~1,100
  • Key Practice Areas: Restructuring, private equity
Weil’s restructuring expertise, honed during economic crises, sustains its earnings.

20. Davis Polk & Wardwell LLP
  • Revenue: ~$2.1 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~1,000
  • Key Practice Areas: Capital markets, M&A
Davis Polk’s Wall Street roots and capital markets leadership fuel its revenue.

21. Simpson Thacher & Bartlett LLP
  • Revenue: ~$2.0 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~1,000
  • Key Practice Areas: Private equity, banking
Simpson Thacher’s private equity and banking focus deliver consistent revenue.

22. Paul, Weiss, Rifkind, Wharton & Garrison LLP
  • Revenue: ~$1.9 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~1,000
  • Key Practice Areas: Litigation, corporate
Paul Weiss’s litigation and corporate work for high-profile clients like Apollo keep it strong.

23. Ropes & Gray LLP
  • Revenue: ~$1.8 billion
  • Headquarters: Boston, USA
  • Lawyer Count: ~1,500
  • Key Practice Areas: Private equity, healthcare
Since 1865, Ropes & Gray’s private equity and healthcare niches drive revenue.

24. Cleary Gottlieb Steen & Hamilton LLP
  • Revenue: ~$1.7 billion
  • Headquarters: New York, USA
  • Lawyer Count: ~1,200
  • Key Practice Areas: Antitrust, international law
Cleary Gottlieb’s global antitrust and sovereign client work bolster its earnings.

25. King & Spalding LLP
  • Revenue: ~$1.6 billion
  • Headquarters: Atlanta, USA
  • Lawyer Count: ~1,300
  • Key Practice Areas: Energy, litigation
King & Spalding’s energy sector dominance and litigation strength round out the top 25.

 

Beyond the Top 25: Notable Trends and Players


Firms like Greenberg Traurig ($1.5 billion) and WilmerHale ($1.4 billion) hover just outside the top 25, reflecting the depth of Big Law. Regional giants, such as China’s Dacheng or India’s AZB & Partners, also gain traction, though lower billing rates keep them off global revenue lists. The verein model’s proliferation continues to shape rankings, balancing scale with autonomy.

 

What Drives Revenue Success?


Key drivers include:

1. Practice Area Focus: High-value niches like M&A and private equity (Kirkland) versus broad portfolios (DLA Piper).
2. Global Presence: Multi-jurisdictional reach (Baker McKenzie) captures cross-border work.
3. Client Base: Long-term ties with Fortune 500 firms (Jones Day) ensure stability.
4. Billing Innovations: AFAs and premium rates (Latham) enhance revenue streams.
5. Talent Strategy: Star partner hires (Sidley Austin) bring lucrative clients.

 


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Challenges Facing Revenue Giants

1. Competition: Boutiques and ALSPs like Elevate challenge market share.
2. Tech Disruption: AI reduces billable hours, pressuring firms to innovate.
3. Economic Shifts: 2025’s geopolitical uncertainties may dampen deal flow.
4. Profit Margin Pressure: High headcounts (Dentons) can erode per-partner earnings.

 

The Future of Big Law: Trends to Watch

  • ESG Growth: Firms like Freshfields lead in sustainability advisory.
  • AI Adoption: Gibson Dunn’s tech investments hint at efficiency gains.
  • Emerging Markets: Africa and Asia offer untapped revenue potential.
  • Mergers: A&O Shearman’s success may spark further consolidation.

 

Critical Analysis: Is Revenue the Best Metric?


Revenue highlights scale but overlooks profitability (e.g., Wachtell’s PPEP dominance) and client satisfaction. Ethical concerns—overbilling, burnout—also loom large, suggesting a need for broader evaluation metrics.

Conclusion


The top 25 law firms by revenue are titans of legal and economic influence, from Kirkland & Ellis’s $7.5 billion peak to King & Spalding’s $1.6 billion foothold. Their stories reveal a blend of strategy, scale, and adaptation. As 2025 unfolds, their ability to navigate technology, competition, and global shifts will determine their enduring dominance in Big Law.


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